Improvement in hand corn-planters



v I. s.- COR-Y. Hand Co rn-PIanters.

' 150 294. PatentedApril28,l874.

NITED STATES PATENT OFFICE;

IsAAc s. com, or DALTON, INDIANA.

IMPROVEMENT IN HAND CORN-PLANTERS.

Specification formingpart of Letters Patent No. 150,294, dated April 28,1874; application filed February 9, 1874.

To all whom it may concern:

Be it known that I, lsAAo S. CORY, of Dalton, Wayne county, Indiana,have invented a new and useful Hand Corn-Planter, of which the followingis a specification:

My invention relates to improvements in the class of seed-plantingdevices which comprise abox or hopper having within it a slidingplunger, provided at its upper end with a handle, by means of which theimplement is shifted from hill to hill, and by which said plunger isdriven into the ground, so as to bury at each stroke the proper modicumof seed. My improvements comprise the following instrumentalities: Acatch or detent, whereby the plunger is automatically retained to itsupper and inoperative position at the termination of each return stroke,and until voluntarily released by the operator, said detent beingconnected by lever to the seed-slide, so as to make the motion of thelatter synchronous with and dependent upon the former, thus insuringadeposit of grain at each descent of the plunger; an arrangement of partswhereby the seedslide is made detachable and reversible; a form ofpassage in slide which removes the liability to cut or injure grain.

Figure 1 is a perspective view of my improved hand corn-planter, theoperating-lever of the seedslide being shown engaged under the shoulderof the plunger. Fig. 2'is a vertical section of the same at the line XX. Fig. 3 is a perspective view of the planter, the seed-slide leverbeing shown disengaged from the plunger and the latter depressed. Fig. 4is a vertical section thereof at the line Y Y. Fig. 5 is a perspectiveview, showing the rear side of the planter with its accompanying yielding jaw detached from the implement. Fig. 6 is a horizontal section at thelines Z Z and Fig. 7, an enlarged vertical section through theseed-slide and its accessories, the slide being in the same position asrepresented in Figs. 3 and 4.

The box A, slide B, diaphragm 0, cutoff D, and plunger E are, or may be,except in particulars hereinafter explained, identical with those in usein the \Vakefield planter. My box is perforated on two opposite sideswith two rectangular apertures, a a,

at slightly different heights, for the reception of the slide B, whichis thus held to a somewhat inclined position, as shown, and to which, ofcourse, the diaphragm O conforms. The pocket I) in the slide and thedischarge-passage c in the diaphragm are reversely oblique, as shown inFigs. 2 and 7. The object and effect ofthis compound obliquity are toavoid the nipping and choking of grain in its descent through the slide.The cut-off D is provided with a rubber pad or cushion that bears uponthe upper surface of the seed-slide B, as more clearly shown in Fig. 7The slide B has notches, b b, for the engagement of a lever, F, which isheld in its normal position by means of a spring, G, and whose upperextremity, when in that condition, engages under a shoulder, H, on theplunger side, and thereby holds said shoulder to its uppermost position,as shown in Figs. 1 and 2, thus serving as a detent for said plunger.The lever E is hinged to the partition S at f. I is a trigger, wherebythe said detent may be dis engaged by the operators forefinger, so as torelease the plunger and to allowit to descend.

By depressing the spring G the lever F can be disengaged from the slide,and the latter can then be withdrawn and reversed or replaced, asdesired. Projecting perpendicularly and rigidly from the bottom of thebox is a spade or cutter, J, which operates to cut the ground andpenetrateor displace any opposing clod, stalk, or other body, that mightotherwise prevent the descent of the seed and its proper lodgment in theground. Opposed to the spade J is a spring jaw or check, K. The upperend of this yielding jaw is secured to the rear side of the box, asshown in Figs. 4 and 5. Projecting sidewise from the lower end of box Ais a foot, L, whose office is to prevent the penetration of the boxitself into the ground. Just above the foot L the boxside is furnishedwith a scraper, M, and an aperture, N, for the removal and discharge ofany dirt or trash that may adhere to the plunger. The stop 0 is providedwith rubber cushions, P, to take off the jar of contact, and serves, inconjunction with slot Q in boxside, to limit the upward and downwardstrokes of the plunger. B R are blocks which confine the lower end ofthe plunger to a vertical path. Extending from the top of the box A downto the under side of cut-off D d is a partition, S, that prevents seedC0111- ing in contact with the plunger E. It Will be seen that byreleasing the lever F f, the slide may be drawn out, and if worn on oneside may be reversed end for end.

I am aware that an oblique aperture has been proposed in a horizontaldiaphragm, and I, therefore, do not claim such an aperture, save in anoblique diaphragm and in combination with a corresponding reverselyoblique passage in the slide 5 nor do I claim as new a detent, exceptwhere connected with the slide and moving therewith.

set my hand.

ISAAC S. CORY. Attest:

Gno. H. KNIGHT, S. B. SPEAK.

